NAME
Perinci::Sub::To::CLIDocData - From Rinci function metadata, generate structure convenient for producing CLI documentation (help/usage/POD)
VERSION
This document describes version 0.300 of Perinci::Sub::To::CLIDocData (from Perl distribution Perinci-Sub-To-CLIDocData), released on 2022-06-03.
SYNOPSIS
use Perinci::Sub::To::CLIDocData qw(gen_cli_doc_data_from_meta);
my $clidocdata = gen_cli_doc_data_from_meta(meta => $meta);Sample function metadata ($meta):
{
args => {
bool1 => {
cmdline_aliases => { z => { summary => "This is summary for option `-z`" } },
schema => "bool",
summary => "Another bool option",
tags => ["category:cat1"],
},
flag1 => {
cmdline_aliases => { f => {} },
schema => ["bool", "is", 1],
tags => ["category:cat1"],
},
str1 => {
pos => 0,
req => 1,
schema => "str*",
summary => "A required option as well as positional argument",
},
},
examples => [
{
argv => ["a value", "--bool1"],
summary => "Summary for an example",
test => 0,
},
],
summary => "Function summary",
v => 1.1,
}
Sample result:
do {
my $a = [
200,
"OK",
{
"compact_usage_line" => "[[prog]] [options] <str1>",
"example_categories" => { Examples => { order => 99 } },
"examples" => [
{
categories => ["Examples"],
category => "Examples",
cmdline => "[[prog]] 'a value' --bool1",
description => undef,
example_spec => {
argv => ["a value", "--bool1"],
summary => "Summary for an example",
test => 0,
},
summary => "Summary for an example",
},
],
"option_categories" => { "Cat1 options" => { order => 50 }, "Main options" => { order => 0 } },
"opts" => {
"--bool1" => {
arg => "bool1",
arg_spec => {
cmdline_aliases => { z => { summary => "This is summary for option `-z`" } },
schema => ["bool", {}],
summary => "Another bool option",
tags => ["category:cat1"],
},
categories => ["Cat1 options"],
category => "Cat1 options",
description => undef,
fqarg => "bool1",
opt_parsed => { opts => ["bool1"] },
orig_opt => "bool1",
summary => "Another bool option",
tags => 'fix',
},
"--flag1, -f" => {
arg => "flag1",
arg_spec => {
cmdline_aliases => { f => {} },
schema => ["bool", { is => 1 }],
tags => ["category:cat1"],
},
categories => ["Cat1 options"],
category => "Cat1 options",
description => undef,
fqarg => "flag1",
opt_parsed => { opts => ["flag1"] },
orig_opt => "flag1",
summary => undef,
tags => 'fix',
},
"--str1=s*" => {
arg => "str1",
arg_spec => {
pos => 0,
req => 1,
schema => ["str", { req => 1 }],
summary => "A required option as well as positional argument",
},
categories => ["Main options"],
category => "Main options",
description => undef,
fqarg => "str1",
opt_parsed => { desttype => "", opts => ["str1"], type => "s" },
orig_opt => "str1=s",
pos => 0,
req => 1,
summary => "A required option as well as positional argument",
},
"-z" => {
alias_for => "bool1",
alias_spec => 'fix',
arg => "bool1",
arg_spec => 'fix',
categories => ["Cat1 options"],
category => "Cat1 options",
description => undef,
fqarg => "bool1",
is_alias => 1,
main_opt => "--bool1",
opt_parsed => { opts => ["z"] },
orig_opt => "z",
summary => "This is summary for option `-z`",
tags => 'fix',
},
},
"usage_line" => "[[prog]] [--bool1|-z|--no-bool1|--nobool1] [--flag1|-f] -- <str1>",
"usage_line.alt.fmt.pod" => "B<[[prog]]> [B<--bool1>|B<-z>|B<--no-bool1>|B<--nobool1>] [B<--flag1>|B<-f>] -- E<lt>I<str1>E<gt>",
},
];
$a->[2]{"opts"}{"--bool1"}{tags} = $a->[2]{"opts"}{"--bool1"}{arg_spec}{tags};
$a->[2]{"opts"}{"--flag1, -f"}{tags} = $a->[2]{"opts"}{"--flag1, -f"}{arg_spec}{tags};
$a->[2]{"opts"}{"-z"}{alias_spec} = $a->[2]{"opts"}{"--bool1"}{arg_spec}{cmdline_aliases}{z};
$a->[2]{"opts"}{"-z"}{arg_spec} = $a->[2]{"opts"}{"--bool1"}{arg_spec};
$a->[2]{"opts"}{"-z"}{tags} = $a->[2]{"opts"}{"--bool1"}{arg_spec}{tags};
$a;
}
For a more complete sample, see function metadata for C<demo_cli_opts> in
L<Perinci::Examples::CLI>.RINCI
Observed function argument attribute: x.cli.opt_value_label, caption, .
FUNCTIONS
gen_cli_doc_data_from_meta
Usage:
gen_cli_doc_data_from_meta(%args) -> [$status_code, $reason, $payload, \%result_meta]From Rinci function metadata, generate structure convenient for producing CLI documentation (help/usage/POD).
This function calls Perinci::Sub::GetArgs::Argv's gen_getopt_long_spec_from_meta() (or receive its result as an argument, if passed, to avoid calling the function twice) and post-processes it: produce command usage line, format the options, include information from metadata, group the options by category. It also selects examples in the examples property which are applicable to CLI environment and format them.
The resulting data structure is convenient to use when one wants to produce a documentation for CLI program (including help/usage message and POD).
This function is not exported by default, but exportable.
Arguments ('*' denotes required arguments):
common_opts => hash
Will be passed to gen_getopt_long_spec_from_meta().
ggls_res => array
Full result from gen_getopt_long_spec_from_meta().
If you already call Perinci::Sub::GetArgs::Argv's
gen_getopt_long_spec_from_meta(), you can pass the full enveloped result here, to avoid calculating twice. What will be useful for the function is the extra result in result metadata (func.*keys in$res->[3]hash).lang => str
meta* => hash
meta_is_normalized => bool
per_arg_json => bool
Pass per_arg_json=1 to Perinci::Sub::GetArgs::Argv.
per_arg_yaml => bool
Pass per_arg_json=1 to Perinci::Sub::GetArgs::Argv.
Returns an enveloped result (an array).
First element ($status_code) is an integer containing HTTP-like status code (200 means OK, 4xx caller error, 5xx function error). Second element ($reason) is a string containing error message, or something like "OK" if status is 200. Third element ($payload) is the actual result, but usually not present when enveloped result is an error response ($status_code is not 2xx). Fourth element (%result_meta) is called result metadata and is optional, a hash that contains extra information, much like how HTTP response headers provide additional metadata.
Return value: (hash)
HOMEPAGE
Please visit the project's homepage at https://metacpan.org/release/Perinci-Sub-To-CLIDocData.
SOURCE
Source repository is at https://github.com/perlancar/perl-Perinci-Sub-To-CLIOptSpec.
SEE ALSO
Perinci::CmdLine, Perinci::CmdLine::Lite
AUTHOR
perlancar <perlancar@cpan.org>
CONTRIBUTING
To contribute, you can send patches by email/via RT, or send pull requests on GitHub.
Most of the time, you don't need to build the distribution yourself. You can simply modify the code, then test via:
% prove -lIf you want to build the distribution (e.g. to try to install it locally on your system), you can install Dist::Zilla, Dist::Zilla::PluginBundle::Author::PERLANCAR, and sometimes one or two other Dist::Zilla plugin and/or Pod::Weaver::Plugin. Any additional steps required beyond that are considered a bug and can be reported to me.
COPYRIGHT AND LICENSE
This software is copyright (c) 2022, 2021, 2020, 2019, 2016, 2015, 2014 by perlancar <perlancar@cpan.org>.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
BUGS
Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Perinci-Sub-To-CLIDocData
When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.